Answer:399
Step-by-step explanation:
((a+b)/2) * h
((13+25)/2) * 21
399
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Answer:
b) 25
c)14
Step-by-step explanation:
Answer:
juliet collected 50 cans
Step-by-step explanation:
let x be rosanas cans
10+x+2x = 130
simplify
10 + 3x = 130
3x = 130 - 10 = 120
x = 120/3 = 40
rosanas cans = 40
juliets cans = 40 +10 = 50
santiagos cans = 50 x 2 = 100
but i think the question is wrong!!
Answer:
- 35 grams of 11.43% solution
Step-by-step explanation:
The end solution has same volume as initial volumes of mixture.
The concentration of solution is calculated as below
- 10*0.15 + 25*0.1 = 4 g
- 4 / 35*100% = 11.43% (rounded)